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Finding the Third Proportional to 2,380 and 4,997

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Solution

The third proportional to 2,380 and 4,997 is: 10,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380 : 4,997 = 4,997 : x
  2. Step 2: Convert to fraction form
    2,380/4,997 = 4,997/x
  3. Step 3: Cross multiply
    2,380x = 4,997 × 4,997
  4. Step 4: Simplify right side
    2,380x = 24,970,009
  5. Step 5: Solve for x
    x = 24,970,009/2,380
  6. Step 6: Final answer
    x = 10,491.60

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.